Foil-stamping press.



.Nb. 863,583. PATENTED AUG. 20, 1907. 0. BLANKMEISTER.

FOIL STAMPING PRESS.

APPLIOATIOK FILED NOV. 3.1906.

' W I k W wm| I w gx 1 I a 8 UNITED STATES PATEN T OFFTCE.

OTTO BLANKMEISTER, OF DRESDEN, GERMANY, ASSIGNOR TO REINHOLD MASER, OFDRESDEN, GERMANY.

' FOIL-STAMPING PRESS.

Specification of Letters Patent.

Patented Au 20, 1907.

Application filed November 3, 1905. Serial No. 285,695.

To all whom it may concern:

Be it known that I, OTTO BLANKMEISTER, a subject of the German Emperor,residing at Dresden, Germany, have invented certain new and usefulImprovements in FoilStamping Presses, of which the following is aspecification.

My invention relates to foil stamping presses, and refers moreparticularly to a device for feeding the metal leafespecially thatrolled as disclosed in Letters Patent No. 795,023bclow the stamp-head,and for cutting it into lengths.

By means of my new device the foil can be stamped much more rapidly andsharply than otherwise, and with considerable economy of metal; for thefoil is fed into the press without a backing in a continuous strip orribbon and not, as ordinarily, together with a web of paper, or by meansof an aspirator or the like.

In the accompanying drawing the new device is shown together with theportion of the stamping press to which it is fixed.

Figure l is an elevation and Fig. 2 a plan, partly in section. Fig. 3 isan elevation of the cutting appliance in raised position; Fig. 4; a likeview when making the cut; Fig. 5 is a cross-section through Fig. 4,certain rear parts being omitted for the sake of clearness. Fig. (i is adetail view showing in elevation the cutter holding arm and connections.Figs. 7 and 8 are views in detail of the means for operating the rollfor receiving the paper strips.

The endless foil strip a is wound up on a ribbon or backing of paper orthe like b, two marginal strips 0 being wound in between the ribbon andthe foil, as set forth in detail in my Letters Patent 795,023.

The paper web I) and marginal strips 0 with the intermediate strip offoil a are fed from the roll A over a guide bar (Z in line with thestamping table. The paper strip 1) when it reaches the guide-bar passestherearound and beneath the same in a rearward direction between aroller 6 and weighted roller f. The marginal strips 0 and foil 11 passover the stamping table where the portion of the foil corresponding tothe face of the stamp is acted upon by a stamp head g and severed by aknife Z to be hereinafter more fully described. The marginal strips 0pass beneath a guide bar h thence upward over a roller t' and beneathpressing rollers 70 and is acting under the influence of gravity toinsure a close frictional contact between the strips 0 and roller 1'.

In the rear of the stamping table is located a foil cutter l forsevering the stamped lengths of foil. This blade is operated while thefoil is held down to the table to prevent tearing of the foil. Thiscutter comprises a blade m removably secured in a slotted arm or holdern fixed to the rock shaft 2 and beneath the arm n are two pressing barsor jaws 0 between which the blade passes. These pressing bars aresupported from the arm or holder 71 by a link a and spring 0 whichpermit the holder n with the blade at to advance toward the foil tosever the same while the jaws 0 press uponthe foil to firmly hold it.

A shaft j is operated from a drive shaft r and carries two cams oreccentrics t and The eccentric t is engaged by a reciprocating arm a onthe short shaft a mounted on any suitable bearings as a Fig. 2 providedon its upper end with a rack 11 which engages a gear to on the shaft ofroller e. The eccentric a is engaged by a lever arm 3 of the rock shaft2 forraising and lowering the arm 71 carrying the knife in, as shown indetail in Figs. 2 and 6.

Upon setting the machine into operation the upper web I) and strips 0are drawn from the roll A carrying the foil to the stamping table. Theroller 6 serves to draw the paper strip 1) while the rollert' draws themarginal strips 0. The roller 1' is driven by a cord from the driveshaft r and the roller e is driven intermittently in a forward directionby the rack bar it actuated by the eccentric t.

The shaft e of roll 0 must only turn in one direction and the rotationof the gear 11) being in both directions, (see Fig. 7) the said gear isconnected by any suitable means with said shaft, such for instance asthe pawl and ratchet mechanism shown in Fig. 8, whereby such oscillatorymotion of the gear is converted into continuous motion of the shaft e.

I claim as new:

1. In a stamping press, a feed and cutting device for foil wound inrolls with a backing-web and interposed marginal strips. comprising incombination with a stamp ingtable, a guidebar at the back thereof, meansfor drawing the backing in downward direction over the bar withintermittent motion, a guidebar at the front of the table, means fordrawing the marginal strips, which support the foil, in upward directionunder the second bar and for holding the strips under tension, andintermittently actuated means for cutting the portion of the foilbetween the marginal strips, substantially as described.

2. In a stamping press, a feed and cutting device-for ioil wound inrolls with a backing-web and interposed marginal strips, comprising incombination with a stamping-table, a guide-bar at the back thereof, anintermittently rotating roller and a pressingroller cooperatingtherewith, for drawing the backing downward over the said bar. aguidehar at the front of the table, a rotating roller andpressing-rollers cooperating therewith, for drawing the marginal stripsupward under the said second bar, and intermittently actuated means forcutting the portion of the foil between the marginal strips,substantially as described.

3. Ma stamping press a feed and cutting device for foil wound-in rollswith a backing-web and inter-posed marginal strips, comprising incombination with a stamping-table. a guidebar at the back thereof, anintermittently rotating roller and a pressing-roller cooperatingtherewith, for drawing the hacking downward over the said bar, aguide-bar at the front of the table, a rotating roller andpressing-rollers cooperating therewith, for drawing the marginal stripsupward under the second bar, a hinged blade adapted to cut the foilbetween the marginal strips, and means for intermittently raising theblade in correspondence with the feed of the foil, substantially asdescribed.

4. In a stamping press a feed and cutting device for foil wound in rollswith a backing-\veb and interposed marginal strips, comprising incombination with a stamping-table, a guide-bar at the back thereof, anintermittently rotating roller and a pressing-roller cooperatingtherewith, for drawing the backing downward over the said bar, aguide-bar at the front of the table, a rotating roller andpressing-rollers cooperating therewith, for drawing the marginal stripsupward under the said second bar, a hinged blade adapted to cut the foilbetween the marginal strips, and means for intermittently raising theblade in correspondence with the feed of the foil, and means carried bythe knife for holding the foil down to the table during severance,substantially as described.

In testimony whereof I aifix my signature in presence of two witnesses.

OTTO BLANKMEISTER.

Witnesses PAUL E. SCHILLING, FRANK SIMON.

